Aquaculture tail water treatment device with multi-layer filter

Abstract

A kind of multi-layer filter screen's aquaculture tail water treatment equipment, the workbench is symmetrically arranged left and right symmetrically arranged first side plate and second side plate, a plurality of filter screens are sequentially arranged from top to bottom between the first side plate and the second side plate, and the periphery of the filter screen is provided with frame, two rectangular grooves are symmetrically arranged in the two sides of the frame, the outside of the second side plate is provided with a plurality of first motors, the output end of the first motor is provided with driving shaft penetrating the second side plate, start water supply equipment, so that cleaning fluid is sprayed at a plurality of liquid outlets, can provide a backwash effect for filter screen, start third motor, can make screw rotate, through the effect of screw thread structure, can make side block slide along screw, so as to make vertical pipe slide in cavity, further can make a plurality of transverse pipes move, can wash filter screen in all directions, without disassembling filter plate during cleaning process.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment technology, specifically to a multi-layer filter screen aquaculture wastewater treatment device. Background Technology

[0002] Aquaculture produces wastewater, which usually needs to be treated by designated treatment equipment to remove pollutants, the main pollutants being ammonia nitrogen, nitrite, organic matter, phosphorus, and fouling organisms.

[0003] For example, invention patent CN112744985A discloses an inclined aquaculture wastewater treatment system. This system includes: a drainage ditch for collecting wastewater; at least one fishpond connected to the drainage ditch via a fishpond drain pipe to form an aquaculture space; a microbial reaction tank for biological reaction treatment; a microfiltration screen inclined above the microbial reaction tank for solid-liquid separation; a manure trough below the microfiltration screen for manure collection; an ecological purification tank for ecological treatment of wastewater; and an overflow aeration step between the microbial reaction tank and the ecological purification tank for aeration. This system utilizes the overflow aeration step for aeration, increasing the liquid-air contact area for easier aeration, and the ecological purification tank for ecological treatment, achieving a green cycle.

[0004] When the above-mentioned structure is in use, the microfiltration screen has a simple structure and cannot filter the aquaculture wastewater in multiple layers. This results in the microfiltration screen needing to be cleaned and replaced frequently. The cleaning process requires disassembling the filter plate and then manually using a water gun to backwash the filter plate. This not only has a low degree of automation but also low cleaning efficiency. During the cleaning process, the aquaculture wastewater cannot be filtered further, which in turn leads to low filtration efficiency of the aquaculture wastewater. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-layer filter screen aquaculture wastewater treatment device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer filter screen aquaculture wastewater treatment device, comprising a workbench, on which a first side plate and a second side plate are symmetrically arranged, and multiple filter screens are arranged sequentially from top to bottom between the first side plate and the second side plate. A frame is provided around the filter screen, and two rectangular grooves are symmetrically arranged on both sides of the frame. Multiple first motors are provided on the outer side of the second side plate, and the output end of the first motor is provided with a drive shaft that penetrates the second side plate. Multiple positioning shafts are rotatably arranged inside the first side plate, and one end of each drive shaft and positioning shaft is provided with a rectangular block that is inserted into the rectangular groove.

[0007] The upper end of the workbench is symmetrically equipped with two identical baffles and a horizontal tube. The baffles are slidably connected to the workbench. A propulsion assembly is provided at the upper end of the workbench. The output end of the propulsion assembly is provided with a push rod connected to the baffle. The baffle has grooves on both sides. Both sides of the second side plate and the first side plate can be inserted into the grooves. The inner side of the baffle is provided with a stop block that contacts the frame. The inside of the stop block is provided with a cavity. A diverter block is slidably provided at the top of the cavity. The lower end of the diverter block is provided with a vertical tube that is inserted into the cavity. The vertical tube is provided with multiple horizontal tubes that penetrate the stop block. A horizontal tube is also provided on one side of the diverter block. The horizontal tube is located above the filter screen. The lower end of the horizontal tube is provided with a liquid outlet. The other side of the diverter block is provided with a transfer tube and a side block. The side block can slide on the outside of the baffle. A third motor is fixedly provided on one side of the baffle. The output end of the third motor is provided with a screw that penetrates the side block.

[0008] The first side plate has a second empty slot and a liquid outlet slot on one side. The second empty slot has a pull-out plate inside. The first side plate has multiple covers for covering the liquid outlet slot and the second empty slot. The covers are fixed to the outer wall of the first side plate with screws.

[0009] To facilitate frame replacement, the present invention includes the following improvements: two first slots are symmetrically arranged on the left and right sides of the worktable, and the lower ends of the first side plate and the second side plate are provided with bottom blocks that slide with the first slots; an annular frame rotatably arranged at the lower end of the worktable and penetrated by a drain pipe is provided, and a toothed ring is provided on the periphery of the annular frame; a second motor is fixedly arranged at the lower end of the worktable, and the output end of the second motor is provided with a toothed disc that meshes with the toothed ring; two connecting rods are symmetrically arranged at the bottom end of the annular frame, and the two ends of the connecting rods are rotatably connected to the annular frame and the bottom block, respectively.

[0010] To ensure the stability of the connecting rod during use, the present invention includes an improvement in which the lower end of the base block and the periphery of the ring frame are provided with protrusions that penetrate the connecting rod, and the connecting rod is rotatably connected to the protrusions.

[0011] To improve the stability of the ring frame during use, the present invention includes an annular groove at the lower end of the workbench and a positioning ring inserted into the annular groove at the upper end of the ring frame, wherein the positioning ring is rotatably connected to the annular groove.

[0012] Furthermore, an improvement of the present invention is that the propulsion assembly employs a telescopic cylinder.

[0013] Furthermore, an improvement of the present invention is that the first motor, the second motor, and the third motor are all servo motors.

[0014] To improve the stability of the first side plate, the second side plate, and the baffle during sliding, the present invention includes the following improvements: a plurality of first sliding grooves are symmetrically arranged on the upper end of the worktable; a first slider that slides in cooperation with the first sliding grooves is provided at the lower end of the first side plate and the second side plate; a plurality of second sliding grooves are symmetrically arranged on the upper end of the worktable; a second slider that slides in cooperation with the second sliding grooves is provided at the lower end of the baffle; and the cross-section of the first sliding groove and the second sliding groove is T-shaped.

[0015] Compared with the prior art, the present invention provides a multi-layer filter screen aquaculture wastewater treatment device, which has the following beneficial effects:

[0016] The wastewater first comes into contact with the top layer of filter screen, where large particles of impurities are initially intercepted. Then it falls onto the next layer of filter screen for more refined filtration. This multi-layer filtration of aquaculture wastewater reduces the need for frequent cleaning and replacement of the filter screens.

[0017] The water supply equipment is activated, causing the cleaning solution to spray out from multiple outlets, providing a backwashing effect to the filter screen. The third motor is activated, causing the screw to rotate. Through the action of the threaded structure, the side blocks slide along the screw, allowing the vertical pipe to slide within the cavity. This, in turn, moves multiple horizontal pipes, enabling all-around rinsing of the filter screen. The filter plates do not need to be disassembled during the cleaning process, resulting in a high degree of automation and high cleaning efficiency, thereby improving the filtration efficiency of aquaculture wastewater. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the third-view three-dimensional structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the frame installation structure in this invention;

[0022] Figure 5 This is a schematic diagram of the structure of the card block and the rectangular groove in this invention;

[0023] Figure 6 This is a schematic diagram of the installation structure of the vertical and horizontal pipes in this invention;

[0024] Figure 7 This is a schematic diagram of the positioning ring in this invention;

[0025] In the diagram: 1. Workbench; 2. First side plate; 3. Second side plate; 4. Frame; 5. Filter screen; 6. First motor; 7. Drive shaft; 8. Positioning shaft; 9. Rectangular groove; 10. First empty groove; 11. Bottom block; 12. Ring frame; 13. Second motor; 14. Gear plate; 15. Connecting rod; 16. Protrusion; 17. Drain pipe; 18. Baffle; 19. Groove; 20. Stop block; 21. Cavity; 22. Vertical pipe; 23. Horizontal pipe; 24. Diverter block; 25. Side block; 26. Third motor; 27. Screw; 28. Second empty groove; 29. ​​Pull plate; 30. Discharge groove; 31. Baffle cover; 32. Propulsion assembly. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-7 The present invention discloses a multi-layer filter screen aquaculture wastewater treatment device, comprising a workbench 1, on which a first side plate 2 and a second side plate 3 are symmetrically arranged. A plurality of filter screens 5 are arranged sequentially from top to bottom between the first side plate 2 and the second side plate 3, and a frame 4 is provided around the periphery of the filter screen 5. Two rectangular grooves 9 are symmetrically arranged on both sides of the frame 4. A plurality of first motors 6 are provided on the outer side of the second side plate 3. The output end of the first motor 6 is provided with a drive shaft 7 that passes through the second side plate 3. A plurality of positioning shafts 8 are rotatably arranged inside the first side plate 2. One end of the drive shaft 7 and the positioning shaft 8 is provided with a rectangular block that is inserted into the rectangular groove 9.

[0028] The upper end of the workbench 1 is symmetrically equipped with two identical baffles 18 and a horizontal tube 23. The baffles 18 are slidably connected to the workbench 1. The upper end of the workbench 1 is provided with a push assembly 32. The output end of the push assembly 32 is provided with a push rod connected to the baffles 18. The two sides of the baffles 18 are provided with grooves 19. The two sides of the second side plate 3 and the first side plate 2 can be inserted into the grooves 19. The inner side of the baffles 18 is provided with a stop block 20 that contacts the frame 4. The inside of the stop block 20 is provided with a cavity 21. A diverter block is slidably provided on the top of the cavity 21. 24. The lower end of the diversion block 24 is provided with a vertical tube 22 inserted into the cavity 21, and the vertical tube 22 is provided with a plurality of horizontal tubes 23 that penetrate the baffle 20. A horizontal tube 23 is also provided on one side of the diversion block 24, and the horizontal tube 23 is located above the filter screen 5. The lower end of the horizontal tube 23 is provided with a liquid outlet hole. The other side of the diversion block 24 is provided with a transfer tube and a side block 25. The side block 25 can slide on the outside of the baffle 18. A third motor 26 is fixedly provided on one side of the baffle 18. The output end of the third motor 26 is provided with a screw 27 that penetrates the side block 25.

[0029] The first side plate 2 has a second empty groove 28 and a liquid outlet groove 30 on one side. The second empty groove 28 has a pull-out plate 29 inside. The first side plate 2 has a plurality of covers 31 for covering the liquid outlet groove 30 and the second empty groove 28. The covers 31 are fixed to the outer wall of the first side plate 2 by screws.

[0030] In this embodiment, the lower end of the bottom block 11 and the periphery of the ring frame 12 are provided with protrusions 16 that pass through the connecting rod 15, and the connecting rod 15 is rotatably connected to the protrusions 16, which can ensure the stability of the connecting rod 15 during use.

[0031] In this embodiment, the propulsion component 32 is a telescopic cylinder, and the first motor 6, the second motor 13 and the third motor 26 are all servo motors.

[0032] In this embodiment, the upper end of the workbench 1 is symmetrically provided with multiple first sliding grooves, the lower ends of the first side plate 2 and the second side plate 3 are provided with first sliders that slide in cooperation with the first sliding grooves, the upper end of the workbench 1 is symmetrically provided with multiple second sliding grooves, and the lower end of the baffle 18 is provided with second sliders that slide in cooperation with the second sliding grooves. The cross-sections of the first sliding grooves and the second sliding grooves are both T-shaped, which can improve the stability of the first side plate 2, the second side plate 3 and the baffle 18 when sliding.

[0033] When aquaculture wastewater is introduced into the equipment, it first comes into contact with the top filter screen 5, where large particles of impurities are initially intercepted. Then it falls onto the next filter screen 5, and undergoes finer filtration in sequence. This allows for multi-layer filtration of aquaculture wastewater, so that filter screen 5 does not need to be cleaned or replaced frequently.

[0034] When cleaning filter screen 5 is required, first activate the telescopic cylinder to pull baffle 18 via the push rod, causing the grooves 19 on both sides of baffle 18 to separate from the side plate. Simultaneously, the baffle block 20 disengages from the filter screen 5 frame 4, allowing multiple filters to be positioned horizontally on both sides of the filter screen 5. Then, activate the first motor 6, which drives the drive shaft 7 to rotate. Through the cooperation of the rectangular block and the rectangular groove 9, the filter screen 5 frame 4 rotates around the positioning shaft 8, causing multiple frames 4 to rotate multiple filters 5 by 180 degrees. Then, reset the two baffles 18. Connect the designated water supply equipment to the adapter pipe on the diversion block 24 via the conduit. Remove the baffle cover 31 from one end of the outlet tank 30 and the second empty tank 28, and then remove the pull... Plate 29 is inserted into the second empty slot 28. At this time, the water supply equipment is started, so that the cleaning liquid is sprayed out at multiple outlet holes, which can provide a backwashing effect for the filter screen 5. The impurities washed off will fall onto the plate 29 and then flow out of the outlet slot 30. During this process, the third motor 26 is started, which can make the screw 27 rotate. Through the action of the thread structure, the side block 25 can slide along the screw 27, thereby making the vertical pipe 22 slide in the cavity 21, and then making multiple horizontal pipes 23 move, which can wash the filter screen 5 in all directions. The filter plate does not need to be disassembled during the cleaning process. It is not only highly automated, but also highly efficient in cleaning, thereby improving the filtration efficiency of aquaculture wastewater.

[0035] After the filter screen 5 is cleaned, simply flip the frame 4 over again, then pull out the pull plate 29 and fix the cover plate.

[0036] Two first empty slots 10 are symmetrically arranged on the left and right sides of the workbench 1, and the lower ends of the first side plate 2 and the second side plate 3 are provided with bottom blocks 11 that slide with the first empty slots 10. The lower end of the workbench 1 is rotatably provided with an annular frame 12 that is penetrated by a drain pipe 17, and the annular frame 12 is provided with a toothed ring on its periphery. The lower end of the workbench 1 is fixedly provided with a second motor 13, and the output end of the second motor 13 is provided with a toothed disc 14 that meshes with the toothed ring. The bottom end of the annular frame 12 is symmetrically provided with two connecting rods 15, and the two ends of the connecting rods 15 are rotatably connected to the annular frame 12 and the bottom block 11 respectively, which makes the frame 4 easy to replace.

[0037] When the filter screen 5 needs to be replaced, first move the two baffles 18, then start the second motor 13. The second motor 13 drives the gear plate 14 to rotate, and the gear plate 14 drives the ring frame 12 that meshes with the gear ring to rotate. The ring frame 12 drives the first side plate 2 and the second side plate 3 to slide synchronously in opposite directions through the connecting rod 15, which can make the rectangular block disengage in the rectangular groove 9, thereby facilitating the disassembly of the frame 4 and the filter screen 5. When installing the frame 4, take the frame 4, place one of the rectangular blocks into the rectangular groove 9, and then support the frame 4 to reset the first side plate 2 and the second side plate 3.

[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A multi-layer filter screen aquaculture wastewater treatment device, comprising a workbench (1), characterized in that: The workbench (1) is symmetrically arranged with a first side plate (2) and a second side plate (3). Multiple filters (5) are arranged between the first side plate (2) and the second side plate (3) from top to bottom. The filter (5) is provided with a frame (4) around its periphery. Two rectangular slots (9) are symmetrically arranged on both sides of the frame (4). Multiple first motors (6) are provided on the outside of the second side plate (3). The output end of the first motor (6) is provided with a drive shaft (7) that passes through the second side plate (3). Multiple positioning shafts (8) are rotatably arranged inside the first side plate (2). One end of the drive shaft (7) and the positioning shaft (8) is provided with a rectangular block that is inserted into the rectangular slot (9). The upper end of the workbench (1) is symmetrically provided with two baffles (18) of the same structure and a horizontal tube (23). The baffles (18) are slidably connected to the workbench (1). The upper end of the workbench (1) is provided with a propulsion assembly (32). The output end of the propulsion assembly (32) is provided with a push rod connected to the baffles (18). The two sides of the baffles (18) are provided with grooves (19). The two sides of the second side plate (3) and the first side plate (2) can be inserted into the grooves (19). The inner side of the baffles (18) is provided with a stop block (20) of the contact frame (4). The inside of the stop block (20) is provided with a cavity (21). The top of the cavity (21) is slidably provided with a diverter block (23). 24), the lower end of the diversion block (24) is provided with a vertical tube (22) inserted into the cavity (21), and the vertical tube (22) is provided with a plurality of horizontal tubes (23) that penetrate the baffle (20). A horizontal tube (23) is also provided on one side of the diversion block (24), and the horizontal tube (23) is located above the filter screen (5). The lower end of the horizontal tube (23) is provided with a liquid outlet hole. The other side of the diversion block (24) is provided with a transfer pipe and a side block (25). The side block (25) can slide on the outside of the baffle (18). A third motor (26) is fixedly provided on one side of the baffle (18). The output end of the third motor (26) is provided with a screw (27) that penetrates the side block (25). The first side plate (2) is provided with a second empty groove (28) and a liquid outlet groove (30) on one side. The second empty groove (28) is provided with a pull plate (29) that can be pulled out. The first side plate (2) is provided with a plurality of covers (31) for covering the liquid outlet groove (30) and the second empty groove (28). The covers (31) are fixed to the outer wall of the first side plate (2) by screws.

2. The aquaculture wastewater treatment equipment with a multi-layer filter screen according to claim 1, characterized in that: Two first empty slots (10) are symmetrically arranged on the left and right sides of the workbench (1), and the lower ends of the first side plate (2) and the second side plate (3) are provided with bottom blocks (11) that slide with the first empty slots (10). The lower end of the workbench (1) is rotatably provided with an annular frame (12) that is penetrated by the drain pipe (17), and the annular frame (12) is provided with a toothed ring on its periphery. The lower end of the workbench (1) is fixedly provided with a second motor (13), and the output end of the second motor (13) is provided with a toothed disc (14) that meshes with the toothed ring. The bottom end of the annular frame (12) is symmetrically provided with two connecting rods (15), and the two ends of the connecting rods (15) are rotatably connected to the annular frame (12) and the bottom block (11) respectively.

3. The aquaculture wastewater treatment equipment with a multi-layer filter screen according to claim 2, characterized in that: The lower end of the bottom block (11) and the periphery of the ring frame (12) are provided with protrusions (16) that pass through the connecting rod (15), and the connecting rod (15) and the protrusions (16) are rotatably connected.

4. The aquaculture wastewater treatment equipment with a multi-layer filter screen according to claim 3, characterized in that: The lower end of the workbench (1) is provided with an annular groove, and the upper end of the annular frame (12) is provided with a positioning ring inserted into the annular groove, and the positioning ring is rotatably connected to the annular groove.

5. The aquaculture wastewater treatment device with a multi-layer filter screen (5) according to claim 4, characterized in that: The propulsion assembly (32) employs a telescopic cylinder.

6. The aquaculture wastewater treatment equipment with a multi-layer filter screen according to claim 5, characterized in that: The first motor (6), the second motor (13) and the third motor (26) are all servo motors.

7. The aquaculture wastewater treatment device with a multi-layer filter screen according to claim 6, characterized in that: The upper end of the workbench (1) is symmetrically provided with multiple first sliding grooves, the lower ends of the first side plate (2) and the second side plate (3) are provided with first sliders that slide in cooperation with the first sliding grooves, the upper end of the workbench (1) is symmetrically provided with multiple second sliding grooves, and the lower end of the baffle (18) is provided with second sliders that slide in cooperation with the second sliding grooves.

8. The aquaculture wastewater treatment equipment with a multi-layer filter screen according to claim 7, characterized in that: Both the first and second slides have T-shaped cross-sections.

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